Ender 3 V2 Bed Handles – Klipper Friendly 3D Printer Model

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License: CC BY-SA
File formats: stl
Download type: zip
Size:201.4KB

The file 'Ender 3 V2 Bed Handles – Klipper Friendly 3D Printer Model' is (stl) file type, size is 201.4KB.

Summary

Complete remake

  • remix of a great bed handle which solves the slippage problem of the Ender 3v2.

  • Clicks in 60ths to match Klipper's "SCREWS_TILT_CALCULATE" calibration (if you have auto bed leveling) which tells you rotations in hours:minutes. Each snap of the spring is 1 minute! much faster calibration!

  • plastic springs do not pop out while turning the handles.

  • Lasts longer

  • has a spot for bed clips:

    • better bed clips (see photos) which also work well when using magnetic build plates:
      • Cut a thin glass (or metal) plate and attach the magnetic sheet to that, use bed clips to hold down the plate. see photos. This allows many types of build plates besides only magnetic.
  • string holes to keep clips from flying around when they pop off

  • Main purpose is to keep the bed handles from gradually moving.
  • Probably works on other Ender 3 beds too.

Why

  1. Ender 3 v2 has trouble maintaining the bed screw positions, they need to be held in place, the springs are not the big problem. Ratcheting handles fixes this problem.
  2. Auto bed leveling actually distorts the bottom layers of the print to compensate to level within a set number of layers. You still want to make the bed actually level.
  3. Ratchet wore out and springs popped out
  4. Clips could pop off and end up anywhere; this is a good place to attach them.
  5. Eventually, it could still require re-calibration if the screws moved but this took a very long time to happen; it no longer happens with the extra measures recommended.

ABS Glue

  • You shouldn't limit yourself from gluing ABS!

  • ABS glue is the strongest solvent weld.
  • Plumber's black ABS glue works BEST.
  • You can make your own ABS Glue: recycling ABS by adding MEK (methyl ethyl ketone.) Acetone weakens, MEK is closer to what the glue is. Recycled white ABS works great for me. Just do not fill voids with it because it will take forever to dry the center. The trick is storage: it requires a metal can with metal lid like the plumbers ABS glue uses (any help where to get cheap containers?)

Variations:

  • Back left corner spring has a cable stress relief for the the bed heating cable.

  • Spring mount brackets for attaching a cameras or wiping mechanisms on either side.

Recommendations

  • Never over tighten the handles (look at the springs) because eventually you can force the head of the bolt to turn despite it being strongly secured to no longer spin again; this will undo all the effort to lock the bolt into place.

  • M4 square nut for handles because they are strongest (even more than nut inserts) but you can modify it for M4 hex nuts if you want those.

  • Longer M4 screw for the bed than the stock ones. See post-printing.

  • Drill tiny holes in the better bed clips to attach a string so they don't fly off to who knows where.

  • Use an old headphone cord instead of a cotton string. Wire twist ties could also be used.

  • Cable strain relief uses twist tie wires; which are better than plastic ties and free (as product packaging.)

  • Put a mount bracket spring on the left side front for possible future camera mount.

  • Put a mount bracket spring on the back right side for a wiper mount for the nozzle (useful only if you allow negative Z movement and can get far enough to the right side of the bed.)

  • Buy an auto leveling sensor (I have CR Touch which was rated for higher operating temp.) Saves a crazy amount of time! it doesn't remove the need for an actually level bed if you need precise dimensional prints (your fancy factory fixed bed printers may not differ enough to care.)

  • Buy a SonicPad or get klipper somehow on your Ender; it makes a huge difference especially for the SCREWS_TILT_CALCULATE macro which makes calibration a snap.

Source

This object was made in Tinkercad. Edit it online

A tip would be nice...

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